Need help on my notes for algebra 1 will give brainylist and 5 stars, thanks. (pictures below)

Draw the line of reflection that reflects △abc onto triangle δ a'b'c'

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

Which verbal expression best describes the algebraic expression 3x ÷ 5? the quotient of three times some number and five the product of some number and five divided by three the quotient of three and some number times five the sum of three and some number divided by five